2.2K views · 114 reactions | Have you ever seen a butterfly shiver? When butterflies fly to the ground to drink water, they are cooled by the water and ground so they shiver in order to raise their body temperature for flight. The butterflies move their wings rapidly in an attempt to warm their muscles which need to be at least 55F before they can fly. This video was taken in Cerro Pelon on 12/3 | Save Our Monarchs Foundation | Facebook